<template>
  <div>
    <!-- 头部导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <el-row :gutter="20">
        <!-- 输入框 -->
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList()">
            <template #append>
              <el-button icon="el-icon-search" @click="getGoodsList()"></el-button>
            </template>
          </el-input>
        </el-col>
        <!-- 按钮 -->
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage()">添加商品</el-button>
        </el-col>
      </el-row>
      <!-- 表格区域 -->
      <el-table :data="goodsList" border stripe="">
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="160px">
          <template slot-scope="scope">
            {{scope.row.add_time | dataFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template v-slot="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-Page="queryInfo.pagenum"
      :page-sizes="[5,10,15,25]"
      :page-size="queryInfo.pagesize"
      layout="total, prev, pager, next, sizes, jumper"
      :total="total">
    </el-pagination>
    </el-card>
  </div>  
</template>

<script>
export default {
  data() {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 总和
      total: 0,
      // 商品列表
      goodsList: {}
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    async getGoodsList() {
      const {data:res} = await this.$http.get('goods', 
      {params: this.queryInfo})
      if(res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }
      console.log(res.data);
      this.$message.success('获取商品列表成功！')
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newsize) {
      this.queryInfo.pagesize = newsize
      this.getGoodsList()
    },
    handleCurrentChange(newpage) {
      this.queryInfo.pagenum = newpage
      this.getGoodsList()
    },
    // 点击删除按钮
    async removeById(id) {
     const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
          center: true
        }).catch(err => err)

        if(confirmResult !== 'confirm') {
          return this.$message.info('取消删除')
        }

        const {data:res} = await this.$http.delete(`goods/${id}`)
        if(res.meta.status !== 200) {
          return this.$message.error('删除商品失败！')
        }
        this.$message.success('删除商品成功！')
        this.getGoodsList()
    },
    // 点击添加商品按钮
    goAddPage() {
      this.$router.push('goods/add')
    }
  }
}
</script>

<style>
.el-card {
  margin-top: 15px;
}
.el-table {
  margin-top: 15px;
}
</style>